Electric laundry-iron.



H. C. NEWMAN. I, ELECTRIC LAUNDRY IRON.

APPLICATION FILED JULY 20, 190B.

Patented 0t.12, 1909.

crrnin E rm HARRY C. NEWMAN, 013 LOS ANGELES, CALIFORNIA, ASSIGNOR OFFIFTY-ONE ONE- HUNDBEDTHS TO J. J. JENKINS, OF LOS ANGELES, CALIFORNIA.

ELECTRIC LAUNDRY-IRON.

To all whom it may concern:

'Be it known that l. Hanna (,7. Xnwuax. a citizen of the United States.residing at Los Angeles. in the county of Los Angcles' and State ofCalifornia. have invented a new and useful Electric lauindry-Iron, ofwhich the following is a specification.

This invention relates to electric laundry irons and. the main object ofthe invention is to so constructthe heating element that if part of itbecomes overheated and fuses the heating element as a whole will not beshort circuited but will continue to operate. the fused part stillserving to conduct the current sothat the current will continue to passthrough the. circuit of the heating element the insulating coil spacersbetween the coils.

Fig. 4- is a perspective view of a coil spacer.

The laundry iron comprises a body 1 to which a cover 2 is detachablyfastened by screws 3, there beingan intervening layer of asbestos 4between the cover and body. A handle 53 attached to the cover. The body1 has a continuous channel (3 forming a wedge. shaped core 7 in thecenter of the iron. which core being a. considerable mass of nietalhelps to retain heat in the iron for a considerable time after the ironis disconnected from the circuit.

The bottom and side walls of the channel 6 are lined with suitableinsulation such as mica 8. Arranged in the channel 6 is the heatingelement 9 which consists of a single. resistance wire formed with coils10. The coils of wire are bare but are insulated from I the body of theiron by the insulating lintially fit the cross section of the channel 6.

Specification of Letters Patent.

Application filed July 20, 1908. Serial No. 44.4,554.

Patented Get. 12, 1999.

The coil spacers ll and coils it) fairly fill the channel (3 but fitrather loosely so that the coil may easily be raised out of the channelby the fingers. By referring to Fig. 3 it will be noted that the lowerruns of the coils l0 cross under the lower edges of the coilspacers 11so that in lifting the coils out of the channel the coil spacers arealso necessarily lifted. The two rear ends of the wire heating element 9are respectively at-- tached to terminals 11 and secured by nuts 12, theterminals 11 passing through the rear wall of the body 1 and being bentupwardly to receive. the connection plug not shown. A protector 13secured to the back end of the body partially houses the terminals 11and protects them, also serving as a stop for the switch plug not shown.Asbestos 14 is packed in the channel (3 to fill the space between therear ends of the heating element.

If in use the coils should over heat and fuse at any point Lhavefound inpractice that the molten metalruns together and still keeps the unfusedcoils electrically connected. Thegreatest heat will generally bedeveloped at the side portions of the coil where the turns of wire areclosest together, and least opportunity is given for carrying away theheat so that fusing of the coil will take. place at these portions, ifat all, and the turns being close together and in, contact with the micaat these portions, it follows that. the turns of wire will contact andfuse together in'n'nediately on burning out by overheating. If the fusedmetal were allowed to contact with the body of the iron it would ofcourse short circuit the heating element, but the fused metal isprevented from this by the insulating lining 8.

By removing the cover the heating ele ment. may easily be lifted out ofthe channel for examination, and, by detaching its ends from terminalsl1 it may be entirely removed and a new heating element quicklysubstituted. y i

What I claim is 1. In an electric heating utensil, a body, a heatingelement in said body comprising a coiled wire, and. coil spacers .ofinsulating material removably inserted between the respective coilsof-thc wire, each spacer resting on the lower run of the coil, and thelower runs of the coils crossing under the lower edges of the coilspacers.

2. In an electric heating utensil, a body havn-ig a channel formin awedge shaped. core. insulating material lining the Walls of the channel,a heating element removably.

fitting in said channel comprising a coiled wire, and insulating coilspacers between the respective coils of wire, the turns of the coil ofwire and the insulating spacers substantially fitting within the liningin the aforesaid channel and retained in place by said lining, andterminals at the rear end of the body, the respective ends of the coiledWire being attached to the terminals.

In an electric heating utensil, a body having a channel, insulatingmaterial lining the walls of the channel, a heating element removablyfitting in said channel comprising a coiled wire, and insulating coilspacers between the respective coils of wire, said coil spacers beingrectangular sheets of insulating material substantially fittingtransversely in the channel, and resting on the lower runs of the coils,said lower runs crossing under the insulating spacers.

4. In an electric heating utensil, a body having a channel forming awedge shaped core, insulating material lining the Walls of the channel,a heating element removably fitting 111 said channel comprising a coiledwi're, insulating coil spacers between the respective coils of Wire,terminals at the rear end of the body, the respective ends of the coiledwire bein attached to the terminals, and insulation lling the channelbetween the rear ends of the coiled Wire.

5. In an" electric heating utensil, a body having a channel, insulatingmaterial lining the walls of the channel, a heating element removablyfitting in said channel comprising a coiled wire, insulating coilspacers between the respective coils of Wire, terminals at the rear endof the body, the respective ends of the coiled wire being attached tothe terminals, and a protector attached outside the body for protectingand housing the terminals. 4

In testimony whereof, I have hereunto set my hand at Los Angeles,California, this 13th day of July 1.908.

HARRY C. NEWMAN.

In presence of G. T. HACKLEY, FRANK L. A. GRAHAM.

